Safeties Glover Quin (ankle) and Louis Delmas (knee) returned to practice, albeit in limited fashion, after sitting out Wednesday.

Cornerback Chris Houston was the only starter in the secondary who did not practice today. He missed a second consecutive practice with that sore hamstring and his availability for Sunday is in question.

The Lions will release designations for Sunday’s game in Green Bay at 4 p.m. Friday.

Also missing a second day of practice this week was receiver Calvin Johnson, who is dealing with a knee injury. Johnson did finish last week’s game in Chicago and it has been customary for him to sit out practice during the week.

Also missing from practice was linebacker Ashlee Palmer, whose been dealing with an ankle injury for the last couple weeks. The injury has not prevented him from playing in all four games, though.